string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BF%9D%E5%AD%98%E7%8E%AB%E7%91%B0%E8%8A%B1%E7%9A%84%E6%96%B9%E6%B3%95 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
保存玫瑰花的方法
